: an elevated railway (as in an amusement park) constructed with sharp curves and steep inclines on which cars roll
: something resembling a roller coaster; especially : behavior, events, or experiences characterized by sudden and extreme changes <an emotional roller coaster>
Examples of ROLLER COASTER
- We went for a ride on the roller coaster.
- The divorce was an emotional roller coaster for both of them.
First Known Use of ROLLER COASTER
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